Winding device for winding wire onto rubber cores



April 28, 1964 M. OSTERMANN 3,130,534

WINDING DEVICE FOR WINDING WIRE ONTO RUBBER CORES Filed March 12, 1962 nwfmvu United States Patent() a firm Filed Mar. 12, 1962, Ser. No. 179,097 Claims priority, application Germany Mar. 29, 1961 12 Claims. (Cl. 57--9) This invention relates to winding devices, and more speciiically to a Winding .device for coil-ing wire onto or into suction hoses, in which an extruded rubber core, with the interposition of a textile or wire netting, is wrapped with Wire of which several coils may be provided adjacent `one another, and an outer coating is applied onto the wire coil or coils with the Iinterposition of a further 'textile or wire netting.

Alt is already known to coil springs onto a mandrel on a turning lathe `or on a vise with the aid of a winding device which serves as a guide means for the Wire land can be adjusted by means of a lever during the coiling operation. Further, automatic spring coilers are known which work without the aid of ra mandrel and let the springs freely come oli. Both these arrangements, however, are not suitable for -coiling wire onto Ihoses because of the limited lengths `of 4the mandrels or automatic coilers, respectively.

It is the object of the invention to provide a winding device for coiling wire onto rubber cores and the like, of great lengths, particularly in braiding or winding machines.

According .to the invention, this object is attained by the provision `of a winding device which comprises a reel carrying the wire to be Wound onto fthe rubber hose, and a rotatable guide member for guiding said wire when being reeled off said reel to the point of application on said rubber hose.

The rubber core may be drawn oi'r in a known m-anner by means of a mandrel. Instead of the rubber core also harder elastic materials, such as Teon, may be nsed onto which the wire can be .coiled without a mandrel.

The winding 4device may conveniently be used in the known braiding or winding machines having a chain, caterpillar or the like extractor and can be positioned between 'the braiding or winding heads of the machine.

The reel supplying the wire may be arranged concentrically to the mandrel.

That part of the rotatable guide member which extends towards the reel may be arranged above the reel substantially in the middle of the length thereof and may have an arcuate portion arranged eccentrically with respect to the mandrel and -to the longitudinal middle axis of the wire coil or coils.

The wire may be guided by means of rollers rotatably mounted on :the rotatable guide member.

rthe rotatable guide member may have two arms one of which has an extension provided with additional rollers which are preferably adjustably movable towards and `away from the Winding axis so that the wire can be permanently deformed by simple means. This deformation is snicient lto provide a tight grip of the wire on the intermediate layer and to prevent the wire ends from uncoiling after the wire has been cut olf.

If a plurality of wire threads are to be wound simultaneously, several reels with Itheir `associated rotatable guide members may be arranged in series on a bearing bushing. -Each reel may be provided with an adjustable brake for giving the wire When being reeled off the reel a predetermined pre-tension. Such a -brake may be either a disc brake or a block brake.

3,130,534 Patented Apr. 28, 1964 ice A preferred embodiment of the invention will now be described by way of example and with reference `to the accompanying drawing, in which:

FIG. 1 is an elevational view of a winding device according `to the invention;

FIG. la is an elevational view showing part of FIG. l to an enlarged scale;

FIG. 2 is a section on the line II-II of FIG. l;

FIG. 2a is a section on line IIa-lIa of FIG. la; and

FIG. 3 is a section on the line III-III of FIG. 2.

In the iigures, the reference numeral 5 designates a mandrel which may form part of a known braiding or winding machine (not shown) and can be pulled out therefrom in the direction of the arrow 4 (FIG. 2). The mandrel 5 yis guided -in `an exchangeable bushing 16 which is arranged in `a bearing bushing 6 provided in a housing 7. On its free end the bearing bushing 6 is provided with a bearing 8 for a reel `9 having on one of its ilanges 11 a pin 12 which carries a brake 13. Wire 16 has been wound onto the reel 9. The brake -13 comprises a brake clutch 14 circumferentially engagling a ring 13 secured lby means Vof at least one key 19 (FIG. 3) to the bearing bushing 6, the brake clutch 14 being adapted to be pressed against the ring 118 by means of 'a screw 17. Two ball bearings 20 (FIG. 2) are mounted on the bearing bushing 6 and carry la ilanged sleeve-type member 21 having projecting parts 22 and 23 which support through the intermediary of rods 24 and 25 a rotatable guide member 26 having an arcuate portion 27 which is arranged ecoentrically with respect to the mandrel 5 and provided with two yarms 28 and 29. The arm 2S is secured to .the rod 24 substantially above the middle portion of the reel 9 and the arm 29 is arrange-d adjacent 'the mandrel 5. The rotatable guide member 26 is provided with rollers 30. 'Ihese rollers 30 are rotatable on axles 31 which are mounted so as to extend substantially parallel to the longitudinal axis of the mandrel 5.

The rods 24 and 25 -to which the rotatable guide member 26 is secured are expediently arranged at the same distance from the longitudinal axis of the mandrel 5. The arms 23 and 29 are disposed opposite each other inl spaced relationship both inthe longitudinal direction of the mandrel 5 and in the transverse direction thereof. 'Ihe rotatable guide member 26 consists of flat iron and Ihas an .extension 32 which is secured to the rod 25. Two rollers 33 `are arranged on the extension 32 and movable towards and away from the mandrel 5. For this purpose the extension 32 may be formed with two slots 38 extending toward mandrel 5l and the shafts 39 of the two rollers 33 extend respectively through slots 38. Each shaft 39 is provided on one side of the extension 32 with a flange portion 4Q while at the other side a nut 41 is screwed onto a threaded end of the shaft so as to press the flange portion 49 against the one side of .the extension 32, `to hold thereby the roller 33 in an adjusted position along the slot 38. The wire 10 is guided by the rollers 30 and 33 and ycan be permanently deformed by displacing the rollers 33. This deformation is intended to provide a tight grip of Ithe wire 10 on an intermediate layer (not shown) and to prevent the wire 10 from uncoliling after having been cut od.

A rubber hose 15 is applied to the mandrel 5 in a known manner and the free end of the wire 10 led around the rollers 30 and 33 is tightly clamped thereon.

The ilanged sleeve-type member 21 is provided with a toothed rim 34 which is adapted to be driven by a pinion 35. During operation the rotatable guide member 26 with the wire 10 will be rotated through the intermediary of the iianged sleeve-type member 21 in the l direction of the arrow 36, as can be seen from FIG.

At the same time the mandrel 5 with the rubber hose 15 and the wire will be pulled out of the bearing bushing 6 in a known manner by a pulling device (not shown), in the direction of the arrow 4. The pull will cause the wire 10 to rotate the reel 9 in the direction of the arrow 37. When the wire 10 is pulled olf the reel 9 it is led through the intermediary of the rotatable guide member 26 around the rollers 30 and subsequently deformed according to the location of the rollers 33 whereupon it will be helically wound onto the rubber hose 15. The position of the point at which the wire l@ is applied onto the rubber hose as well as the spacing of the individual windings of the coiled wire 1t) is dependent on the speed at which the wire 10 is reeled olf the reel 9 and on the rate of revolution of the rotating wire 10. The pretension of the wire 10 is adjustable by means of the brake 13.

Instead of the single wire 10, several wires may be wound in multiple threads onto the rubber hose 15 by arranging several winding devices in series. The general arrangement may be such that the winding device shown in the drawing is positioned between the braiding or winding head of the braiding or winding machine. The wire is then wound in a continuous process either in single or multiple threads onto the interpositioned known netting whereupon a further netting is applied onto the wire.

As already mentioned, the gures of the drawing show only one preferred embodiment of the invention which, however, is not limited to this single embodiment as there are many other embodiments and applications feasible without departing from the nature of the invention. For example, the reel 9 may also be supported on a known winding plate and in a manufacturing process not using a mandrel, the exchangeable bushing 16 may be replaced in a known manner by a supporting tube. Instead of wires also bands may be used which are wound so as to overlap in an interlocking manner. The interlocking may be eifected by bending the edges or in dovetail or snap-fastener fashion.

I claim:

1. In a machine for producing armored hose, in combination, support means; first guide means mounted on said support means for guiding a hose in the direction of its axis; second guide means extending transverse to and partly around said axis and being mounted on said support means turnably about said axis for guiding an elongated resiliently flexible metal element in a direction substantially normal to said axis onto said hose and for winding said element about said hose so that during movement of said hose in the axial directionsaid element is wound in a spiral onto said hose, said second guide means having an end portion adjacent said axis; and deforming means mounted on said end portion for imparting a permanent deformation to said elongated resiliently flexible element before it is applied to said hose.

2. In a machine for producing armored hose, in combination, support means; first guide means mounted on said support means for guiding a hose in the direction of its axis; second guide means extending transverse to and partly around said axis and being mounted on said support means turnably about said axis for guiding a wire in a direction substantially normal to said axis onto said hose and for winding said wire about said hose so that during movement of said hose in the axial direction said wire is wound in a spiral onto said hose, said second guide means having an end portion adjacent said axis; and deforming means mounted on said end portion for imparting a permanent deformation to said wire before it is applied to said hose.

3. In a machine for producing armored hose, in combination, support means; rst guide means mounted on said support means for guiding a hose in the direction of its axis; a wire reel mounted on said support means turnably about said axis; second guide means mounted on said support means turnably about said axis for Winding a wire from said wire reel about said hose so that during movement of said hose in the axial direction said wire is wound in a spiral onto said hose, said second guide means including an arcuate member having one end located between opposite ends of said reel radially spaced from the periphery thereof and another end axially spaced from said reel in direction of movement of said hose and adjacent said axis; and deforming means mounted on said other end of said arcuate member for imparting a permanent deformation to said wire before it is applied to said hose.

4. In a machine for producing armored hose, in combination, support means; rst guide means mounted on said support means for guiding a hose in the direction of its axis; second guide means extending transverse to and partly around said axis and being mounted on said support means turnably about said axis for guiding a wire in a direction substantially normally to said axis onto said hose and for winding said wire about said hose so that during movement of said hose in the axial direction said wire is wound in a spiral onto said hose, said second guide means having an end portion adjacent said axis; drive means connected to said second guide means for turning the same about said axis; and deforming means mounted on said end portion for imparting a permanent deformation to said wire before it is applied to said hose.

5. In a machine for producing armored hose, in combination, support means; first guide means mounted on said support means for guiding a hose in the direction of its axis; a wire reel mounted on said support means turnably about said axis; second guide means mounted on said support means turnably about said axis for winding a wire from said wire reel about said hose so that during movement of said hose in the axial direction said wire is wound in a spiral onto said hose, said second guide means including an annular member mounted on said support means turnably about said axis, and an arcuate member carried by said annular member and having one end located between opposite ends of said reel radially spaced from the periphery thereof and another end axially spaced from said reel in direction of movement of said hose and adjacent said axis; drive means connected to said second guide means for turning the same about said axis; and deforming means mounted on said other end of said arcuate member for imparting a permanent deformation to said wire before it is applied to said hose.

6. In a machine as set forth in claim 5, in which said arcuate member is eccentrically mounted on said annular member and said arcuate member having an extension projecting from said other end of said arcuate member and connected at a free end thereof to said annular member.

7. In a machine for producing armored hose, in combination, support means; rst guide means mounted on said support means for guiding a hose in the direction of its axis; a wire reel mounted on said support means turnably about said axis; second guide means mounted on said support means turnably about said axis for winding a wire from said wire reel about said hose so that during movement of said hose in the axial direction said wire is wound in a spiral onto said hose, said second guide means including an annular member mounted on said support means turnably about said axis, an arcuate member carried by said annular member and having one end located between opposite ends of said reel radially spaced from the periphery thereof and another end axially spaced from said reel in direction of movement of said hose and adjacent said axis, and a plurality of guide rollers mounted spaced from each other along said arcuate member respectively turnable about axes substantially parallel to said axis along which said hose is guided by said rst guide means; drive means connected to said second guide means for turning the same about said axis; and deforming means mounted on said other end of said arcuate member for imparting a permanent deformation to said wire before it is applied to said hose.

8. In a machine for producing armored hose, in combination, support means; rst guide means mounted on said support means for guiding a hose in the direction of its axis; a wire reel mounted on said support means turnably about said axis; second guide means mounted on said support means turnably about said axis for winding a wire from said wire reel about said hose so that during movement of said hose in the axial direction said wire is wound in a spiral onto said hose, said second guide means including an annular member mounted on said support means turnably about said axis, an arcuate member carried by said annular member and having one end located between opposite ends of said reel radially spaced from the periphery thereof and another end axially spaced from said reel in direction of movement of said hose and adjacent said axis, and a plurality of guide rollers mounted spaced from each other along said arcuate member respectively turnable about axes substantially parallel to said axis along which said hose is guided by said rst guide means, one of said guide rollers being mounted in the region of said other end of said arcuate member; drive means connected to said second guide means for turning the same about said axis; and deforming means mounted on said other end of said arcuate member for imparting a permanent deformation to said wire before it is applied to said hose, said deforming means including a pair of deforming rollers mounted in the region of said other end of said arcuate member movable towards and away from said axis and co-operating with said one guide roller for permanently deforming the wire before it is applied to the hose.

9. In a machine as set forth in claim 5 in which said drive means include a gear ring fixed to said annular member and a pinion meshing with said gear ring.

10. In a machine as set forth in claim 3 in which said support means include an elongated tubular member, in which said rst guide means include an elongated rod extending with clearance through said tubular member substantially coaxial therewith, and in which said second guide means and said Wire reel are mounted on said tubular member turnably about the axis thereof.

1l. In a machine as set forth in claim 10 in which said first guide means include a bushing mounted at one end of said tubular member.

12. In a machine as set forth in claim 3 and including brake means mounted on said support means and c0- operating with said reel for controlling rotation thereof.

References Cited in the le of this patent UNITED STATES PATENTS 1,136,291 Subers Apr. 20, 1915 1,204,342 Cobb Nov. 7, 1916 1,367,709 Noble Feb. 8, 1921 1,899,559 Damon Feb. 28, 1933 1,972,290 Conner Sept. 4, 1934 2,118,136 Bardsley May 24, 1938 2,723,705 Collins Nov. 15, 1955 3,020,701 McCormick Feb. 13, 1962 3,037,343 Haas et al June 5, 1962 

1. IN A MACHINE FOR PRODUCING ARMORED HOSE, IN COMBINATION, SUPPORT MEANS; FIRST GUIDE MEANS MOUNTED ON SAID SUPORT MEANS FOR GUIDING A HOSE IN THE DIRECTION OF ITS AXIS; SECOND GUIDE MEANS EXTENDING TRANSVERSE TO AND PARTLY AROUND SAID AXIS AND BEING MOUNTED ON SAID SUPPORT MEANS TURNABLE ABOUT SAID AXIS FOR GUIDING AN ELONGATED RESILIENTLY FLEXIBLE METAL ELEMENT IN A DIRECTION SUBSTANTIALLY NORMAL TO SAID AXIS ONTO SAID HOSE AND FOR WINDING SAID ELEMENT ABOUT SAID HOSE SO THAT DURING MOVEMENT OF SAID HOSE IN THE AXIAL DIRECTION SAID ELEMENT IS WOUND IN A SPIRAL ONTO SAID HOSE, SAID SECOND GUIDE MEANS HAVING AN END PORTION ADJACENT SAID AXIS; AND DEFORMING MEANS MOUNTED ON SAID END PORTION FOR IMPARTING A PERMANENT DEFORMATON TO SAID ELONGATED RESILENTLY FLEXIBLE ELEMENT BEFORE IT IS APPLIED TO SAID HOSE. 